FI69821C - MEASUREMENT AND ROLLING OF MATERIALS - Google Patents

Description

69821

MATERIAL WIND ROLLING ARRANGEMENT - ANORDNING I RULLNING AV MATERIALBAMA

The invention relates to an arrangement for winding a web on a winding sleeve or the like in a carrier roll winder having first and second carrier rolls, a web cutting device, transfer means for transferring the finished roll from the carrier rolls, feeding means for new winding sleeve and guide and hold devices for guiding and holding the cut web before gluing and gluing a web cutting point in which the sleeve fed to the winding station holds the web in place in the space between the carrier rollers and the end of the web to be formed in cutting the web is attached to the roll and the end to the sleeve.

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In the specification and claims below, the term "first carrier roll" refers to the carrier roll with which the rollable roll sleeve in the running direction of the web forms the first roll nip.

A arrangement is known from Finnish patent application 803787, in which a new winding sleeve is transferred to a trough between the rollers above the rollers. In order to adhere the web to the sleeve, the winding sleeve is provided with an adhesive along the jacket line, which is why the sleeve must be placed in the chute in a precise position. This is cumbersome and places high accuracy on the equipment. Controlling the beginning of the web after cutting the web is also questionable. The front end of the web can easily slip down between the carrier rollers, causing costly downtime for the winding process. Ko. the arrangement also requires several actuators whose functions must be synchronized with each other.

The object of the invention is to eliminate the above-mentioned problems by creating an arrangement which, in a simple manner, guarantees the safe and advantageous operation of the apparatus. It is also intended to glue the end of the cut web to the finished roll and the end of the new roll to be rolled to the core.

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The invention is most preferably applicable to a winding technique in which a new winding sleeve is freely fed from above the carrier rollers into the space between them when the finished roll is removed. In this case, the arrangement has means which, during feeding the winding core, hold the web from its portion between the carrier rolls against the first carrier roll in a time period starting from cutting the web and ending when a new core or the like is fed to hold the web in place between the carrier rollers.

According to the invention, before cutting it and before feeding a new core, adhesive areas are arranged at a distance from each other on both sides of the intended cutting point of the web, whereby the end end of the web formed in cutting can be attached to the roll and the new end end to the core. In this way, adhesive areas are provided for the web even before cutting, for example for a moving web before the first carrier roll. In addition, the feeding of the core can be simply arranged, because the core does not have an adhesive area which makes it difficult to handle. Prior to cutting the web and feeding the core, the web is held so that the initial end formed in the cutting is in the winding position.

By arranging the operation of the gluing devices in the rotating phase of the carrier rollers so that a non-gluing web area remains between the piles of glue stripes on both sides of the web cutting point, the cutting device can be kept separate from the strip. This fact is of great importance for the automated use of the equipment. When the glue supply means are evenly spaced in the transverse direction of the web so that the parallel strips of strips are at about 150 mm intervals, fixed glue nozzles can be economically utilized. The operation of the adhesive nozzles can be controlled, for example, in a manner known from Finnish patent application 811390.

In one arrangement, gluing devices are provided in the direction of travel of the web before the locking member to bring the glue to the surface of the web in an area which is free from contact of the first carrier roll.

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The end of the web can be easily attached to the roll when the web is pressed against the roll with a pusher roller and / or a sensor of the cutting device along a part of its glued surface.

The invention will be described in more detail with reference to the accompanying drawing, in which Figures 1-3 illustrate the technique to which the invention is applied and Figure 4 illustrates the use of an embodiment of the invention in connection with said technique.

In the drawing, reference numeral 1 denotes a paper web and 2 pre-rolled paper rolls. The actual winding is carried out in a known manner by means of the carrier rollers 3,4 and the printing roll 5 around the sleeve 6a. To start a new winding, the arrangement has a new sleeve 6b in the sleeve 7. The sleeve 7 has an openable clamp locking, which locks the sleeve 6b to the chute 7. The sleeve 7 is connected to a movable support arm 8, which is also supported by a rotating cylindrical pusher tube or roll 10 and a web cutting device 9. The support arm 8 is moved by a working cylinder 24. The cutting device 9 is a trough-like member with an applicator 23 to be brought into contact with the roller 2. · With the movement of the pusher 10, the interaction between the applicator 23 and the roller 2 is further transferred to the actual cutting blade by arranging the cutting device rotatable with respect to the pusher 10. On the opposite side of the web there is a lowering device 22 for receiving the finished roll 2 when the roll 2 is pushed away from the rollers 3,4. The arrangement has pneumatic control devices such as nozzles 11a and 11b connected to the lifting device 12 of the printing roll 5 and a third pneumatic control device 13. The latter control device 13 is operatively connected to the latch 14 of the web 1. Instead of a beam-like latch 14, an air nozzle 14a substantially perpendicular to the cut web, and thus presses against the web on the first carrier roll 3. The situation shown in Fig. 1 corresponds to the final stage of winding around the sleeve 6a, in which the rollers 3 and 4 are stopped. 1 for cutting the web, the web April 1 69 821 2 poistyöntämiseksi disconnected from the roll and the new core 6b for feeding the support arms 3,4 between the rollers 8 is turned to its institutions it supports the arrow A direction. Weights LAN 5 to release the two roll lifting device 12 is moved in the direction of arrow B. In order to prevent the web 1 from coming off the roll 3 of the roll 3 during cutting, and thus possibly slipping between the rollers 3,4 below the arrangement, the web lock 14 is moved vertically into contact with the web 1 so that it is firmly against the roll 3. The air jet provided from the nozzle 13 supports the new initial end of the web 1, as described below.

Figure 2 shows the situation just after the cutting of the web 1, when the pusher 10 has pushed the roll 2 away from the roll 3. In the cutting of the web 1, the rest of the rolled web 1a and the new initial part 1b of the web 1 are formed. With a pneumatic control device 13, such as a nozzle, moved between the rollers 3 and 4, an air jet 15 is started in the space between the rollers 3 and 4 and the roller 2. A part of the jet 15 is guided between the roll 3 and the roll 2 while bending the initial part 1b of the web towards the roll 3. In this application, the fastening of the end end 1a of the web to the roll 2 can be arranged by some arrangement known per se, for example by riveting or Velcro. The attachment of the initial end 1b to the sleeve 6b to be fed later can be realized by some arrangement close to the end 1b.

In Fig. 3, the roller 2 has moved to the lowering device 22. At the same time, the sleeve chute 7 is rotated around the pusher 10 separately so that the sleeve 6b can fall freely between the rollers 3 and 4 to be supported by them after opening the clamp lock. In order to intensify the pressing of the initial part 1b of the web 1 against the roll 3, air jets 15 are produced by the control device 13. The roller pusher 10, the web lock 14 and the nozzle 13 are returned to their initial position in the directions indicated by the arrows. The pressure roll 5 is lowered into contact with the core 6b, after which the wrapping of the initial part 1b 5 69821 of the web around the core 6b is started. The control of the beginning of the web is performed by means of the jets 16 and 17 of the printing roll 5, the nozzles 11a and 11b and the jets 15 of the nozzle 13 so that before the machine starts to crawl the jets 15 and 17 are activated and the jet 16 is also active.

Figure 4 shows the use of an embodiment of the invention in the above technique. The situation in the figure corresponds to the step following the situation in Figure 3. Reference numeral 18 denotes a row of fixed adhesive nozzles located in the direction of web movement before the latches 14,14a. In the creep stage of the rollers 3 and 4, the web 1 is sprayed with glue strips 19 and 20 before cutting. The glue is fed to the side of the web 1 which does not touch the roll 3. The strips 19 and 20 are on different sides of the web 1 intended cutting point 21 so that the flock 20 forms attaching the end part 1a of the roll 2 to the roll 2 and the flock 19 glue the initial part 1b to a new sleeve 6b. The single stripe in the flocks 19 and 20 is parallel to the web 1, so that the parallel stripes in the same flock are at distances of about 150 mm in the transverse direction of the web 1. In addition, some protective device can be used in this variant of the arrangement, which prevents the roll 3 from being stained with glue. Between the strips 19 and 20 there is a rather non-adhesive part of the web so that there is no glue at the cutting point 21 staining the cutting blade. In the direction of movement of the web 1, the single track 19,20 can be continuous, intermittent or consisting of adhesive spots.

The end end 1a is obtained tightly against the roll 2 when the web is pressed against the roll 2 at least along the length of the strip 20. A pusher roller 10 or an applicator 23 can be used for pushing.

The invention is not limited to the embodiments shown, but several variations thereof are conceivable within the scope of the appended claims. For example, the embodiment according to Fig. 4 can be provided with a member functionally corresponding to the air nozzle 11b shown in Fig. 3.

Claims (7)

6 69821 An arrangement for winding a web (1) into a roll (2) on a winding core (6a, 6b) or the like in a carrier roll winder (3,4,5) having first and second carrier rolls (3,4), a web cutting device (9) , 23), transfer means (8,10,22) for the finished roll (2), feeding means (7) for the new winding sleeve (6b) and guide and holding devices (11a, 11b, 13,14,14a) for the cut web (1) guiding and holding and gluing devices (18) for supplying glue to the web (1) in the direction of travel before the cutting point of the web (1), in which the sleeve (6b) fed to the winding station holds the web (1) in place between the carrier rollers (3,4) and the web (1) ) the end end (1a) of the web to be formed in the cutting is attached to the roll (2) and the end end (1b) to the sleeve (6b), characterized in that adhesive areas are provided on the web (1) before feeding a new winding sleeve (6b) and cutting the web (1). 19, 20) at a distance from each other on the web (1) on both sides of this intended cutting point and the web (1) is held so that the initial end (1b) formed in the cutting is in the winding position. An arrangement according to claim 1, characterized in that during the rotation of the carrier rollers (3, M) the operation of the gluing devices (18) is arranged to form clusters of strips (19, 20) parallel to the web (1) on both sides of the web (1) cutting point (21) there is a non-adhesive web area between the flocks (19, 20) to keep the cutting device (9) separate from the strip (19, 20). An arrangement according to claim 2, characterized in that the adhesive nozzles (18) fixedly arranged in the transverse direction of the web (1) are arranged such that the parallel strips of the same glue flock are at a distance of about 150 μm from each other. 7 69821 Arrangement according to one of the preceding claims, characterized in that the gluing devices (18) are arranged in the direction of travel of the web (1) before the locking element (14) to supply glue to the surface of the web (1) in an area free of contact of the first carrier roll (3). An arrangement according to claim 1, characterized in that the fastening of the end (1a) of the web (1) to the roll (2) is arranged by pressing the web (1) along at least the corresponding adhesive region (20) with a push roller (10) and / or a cutting device ( 9) with the applicator (23) against the roller (2). 1. Anordning for upprullning av en bana (1) account en rulle (2) päen upprullningshylsa (6a, 6b) eller motsvarande i en bärvalsrullmaskin (3 * 4,5) »vilken omfattar en första ooh en andra bärvals (3,4 ), with a spool pin (9,23) for a banana (1), a spool pin (8,10,22) for a spool roll (2), a spool pin (7) for a spool pin (6b) with a styrene spool (11a) 11b, 13,14,14a) for the production and use of bananas (1) in the same way as bananas (18) for the production of bananas (1) and for the production of bananas (1) bush (6b) with banana (1) at the base of the banana (3,4) and with the banana (1) and with the banana (1a) with the banana roll (2) and with the banana (1b) with the bar (6b) ), känne-tecknad därav, att före den nya upprullningshylsans (6b) tillförsel ocan banans (1) avskärning har limomräden (19,20) anordnats pä banana (1), päständ frän varandra ät bä However, the first frying point is obtained, and the banana (1) is in the middle, so that the first frying point (1b) is obtained.